The Intensity at a Distance of 6

question 101

Multiple Choice

The intensity at a distance of 6.0 m from a source that is radiating equally in all directions is 6.0 × 10^-10 W/m².What is the intensity level in dB? The threshold of human hearing is 1.0 × 10^-12 W/m².

• A)18 dB
• B)23 dB
• C)28 dB
• D)32 dB

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